A large explosion rocked the Lebanese capital, Beirut, leaving many casualties.
this blast kills Sunni ex-minister Mohamad Chatah ,among many casualties; he was former Lebanese Finance Minister .
Unfortunately the Syrian civil war will inevitably envenom and worsen sectarian tensions not only in Syria and Lebanon but in the whole middle east .
The Lebanese Shia militant movement Hezbollah has its fighters in Syria to back the government of President Bashar al-Assad.
many Syrian rebel groups are controlled by the Sunni Muslim al-Qaeda network.